Home / 84,359.06-126,496.86-28,179.89

Finding the Fourth Proportional to 84,359.06, 126,496.86 and 28,179.89

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Solution

The fourth proportional to 84,359.06, 126,496.86 and 28,179.89 is: 42,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,359.06 : 126,496.86 = 28,179.89 : x
  2. Step 2: Convert to fraction form
    84,359.06/126,496.86 = 28,179.89/x
  3. Step 3: Cross multiply
    84,359.06x = 126,496.86 × 28,179.89
  4. Step 4: Simplify right side
    84,359.06x = 3,564,667,600.15
  5. Step 5: Solve for x
    x = 3,564,667,600.15/84,359.06
  6. Step 6: Final answer
    x = 42,255.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.